Step 1

Preheat oven to 350.

Step 2

Line muffin tin with paper or foil muffin cups.

Step 3

In a small bowl, mix together flour, baking powder and baking soda. Set aside

Step 4

In a mixing bowl, beat butter for about 30 seconds. Add sugar and vanilla and beat well.

Step 5

Add egg whites and beat well on high speed.

Step 6

Alternate dry flour mixture with cream and milk, beating on low speed just until combined.

Step 7

Spoon batter into prepared cupcake pan.

Step 8

Bake for 20 minutes or until toothpick inserted in the center comes out clean.

Step 9

Allow cupcakes to cool before frosting.